Derivative

**skeeter** · October 17th 2010, 06:22 PM

signs ... signs ... signs ...

$\displaystyle \frac{1}{h} \left[\frac{- 2xh - h^2}{x^2(x+h)^2}\right]$

$\displaystyle \frac{1}{h} \left[\frac{-h(2x+h)}{x^2(x+h)^2}\right]$

$\displaystyle \frac{-(2x+h)}{x^2(x+h)^2}$

**mr fantastic** · October 17th 2010, 11:49 PM

Originally Posted by wowo

Is it -2x+h/(x^2(x+h)^2 ??

Yes. Why the doubt? (I suggest you thoroughly revise your basic algebra skills, by the way. Your weakness in that area is your real problem, not this particular question).

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